MSN Search API - perhaps it is time for me to see if Mike can update Hub Finder & Link Harvester to include MSN Search.

MSN AdCenter review - sounds cool. Am also interested in seeing how their launch will effect the feature sets at other engines, and how the eventual shift and Yahoo! factoring in CTR into cost per click will effect YHOO in the stock market. Google is nearing double the value of Yahoo!, partially because their ad market is so much more efficient than Yahoo!'s.